Lever that drives nail will not reset, has to be manually pushed back up with screw driver
Could be caused by bent driver, piston oring too tight or too loose cylinder split or check band broken or slipped out of place. Easy to check. Remove the head and pull out the cylinder. Check band fits around series of very small holes on mid-lower part if cylinder. Check band looks like rubber band, should fit snugly around cylinder and cover the small holes (any band will do if broken, even many orings side by side). Driver should not be bent, if bent, try of adjust but use caution because it could break easily. The driver should fit into cylinder so that it does not fall thru cylinder under it's own weight. The driver should stay in place and moved with little effort. Good luck
SOURCE: The driver on my Bostitch nail gun won't retract
This is usually caused by either a lack of lubrication or a defect in one of the seals. If hte nailgun has been uised a lot, purchase an O-Ring kit and replace all of the O-rings. That should resolve the problem. I believe that these kits are available for around $20-$30.
Dan
SOURCE: My hitachi framing nailer, the driver shoots a
There is a spring that is broken or the joint just needs some lubricant that can help take care of this issue
SOURCE: nail would not shoot out
The problem that you describe is caused when the driver is not returning all the way back up to the top of the cylinder not allowing the nails to enter into position . You may have one of several problems including worn piston oring, bent driver, worn check valve, worn lower bumper, or low air pressure. Simple test is to manually push the driver blade back to top using a thin piece of metal that fits into bottom of gun. Be sure to disconnect from air supply when doing this. Good Luck
SOURCE: Driver pin on model FN250A not retracting far
I had the same problem with an electric stapler from Craftsman after years of disuse. The solenoid that powers the hammer that is no retracting may require lubing if this is possible.
If not, then if the product is within warranty, you might be able to get a replacement.
SOURCE: Paslode finish nailer. Pull trigger
Try the other order, where you depress the gun first, and then pull the trigger.
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